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6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data

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Deprecated HandlePromotionFailure, removing the ability to turn off that feature, did away with one epoch look-ahead when deciding if a scavenge is likely to fail, relying on current data.

Reviewed-by: jmasa, johnc, poonam
This commit is contained in:
Y. Srinivas Ramakrishna 2010-10-23 23:03:49 -07:00
parent 554e77efb4
commit cbc7f8756a
14 changed files with 101 additions and 222 deletions
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3
hotspot/src/share/vm/gc_implementation/concurrentMarkSweep/concurrentMarkSweepGeneration.hpp
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@ -1185,8 +1185,7 @@ class ConcurrentMarkSweepGeneration: public CardGeneration {
virtual void par_promote_alloc_done(int thread_num);
virtual void par_oop_since_save_marks_iterate_done(int thread_num);
virtual bool promotion_attempt_is_safe(size_t promotion_in_bytes,
bool younger_handles_promotion_failure) const;
virtual bool promotion_attempt_is_safe(size_t promotion_in_bytes) const;
// Inform this (non-young) generation that a promotion failure was
// encountered during a collection of a younger generation that